敌军阵地遭到了猛烈的炮火轰击。

The enemy positions were hit by a relentless ___barrage of artillery shells.

记者们向他发起了一连串尖锐的问题。

Reporters directed a ___barrage of tough questions at him.

这座水坝建在河流上游，用于调节水流。

The ___barrage was built upstream to control the river's flow.